Electro-optical apparatus, method for driving electro-optical apparatus, method for monitoring voltage, and electronic device

Abstract

The present invention prescribes and uses voltage measurement operations during area scan driving and phase development driving. The scanning line driving circuit has a shift register for sequentially shifting the transfer start pulse DX according to the clock signal CLX, which is provided corresponding to each of the plurality of scanning lines, and is supplied with any one of the enable signals Enb1 and Enb2, and turns The pulse width of the shift signal by the shift register is reduced to the pulse width of any one of the supplied enable signals Enb1 and Enb2, and is supplied to the scan lines as a scan signal. In addition, the block selection circuit has a shift register that sequentially shifts the transfer start pulse DY in accordance with the clock signal CLY. The detection circuit detects that the transfer start pulse DY, the enable signal Enb1 , and the transfer start pulse DX satisfy predetermined conditions, and outputs a signal Me that permits voltage measurement to the voltage measurement circuit.

Description

technical field [0001] The present invention relates to a technology for improving display quality of so-called area scan driving. Background technique [0002] In recent years, projectors that form an image using electro-optical properties of liquid crystals and the like and enlarge and project the image using an optical system have become popular. On a small-sized display panel for forming such an image, since the space between pixels is very narrow, so-called disclination (diskline-shin) (poor alignment) becomes a problem. This disclination can be avoided by using a plane inversion (also called frame inversion) method in which adjacent pixels have the same polarity. For example, the upper and lower parts lose the uniformity of the display. [0003] In order to achieve this display uniformity, so-called area scan driving (see Patent Document 1) has been proposed in which a frame period is divided into, for example, first and second periods and the display area is divided...

AI Technical Summary

Problems solved by technology

[0006] However, in area scan driving, since the upper and lower areas are continuously and alternately selected, there is no blanking period in the vertical scan of the display panel.

Therefore, in area scan driving, there is a problem that it is difficult to realize processing using a blanking period, for example, processing for improving display quality.

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